Re: PyReloc - BinReloc for python

On 8/18/07, Isak Savo <[email protected]> wrote:
> 2007/8/17, Jan Niklas Hasse <[email protected]>:
> > > 1) Is the __file__ variable always a full path? For all python
> > > versions/implementations?
> > >    - If not, it should be documented which versions are supported.
> > I'm sorry, i don't know and i couldn't find anything about it in the docs.
>
> Let's assume that it is then. If you could write a small test program,
> we could then test it on various machines. I have Python 2.4.4 and
> 2.5.1 on my system.

It's been there forever. Here's an example for Python 2.2:

http://www.ibm.com/developerworks/linux/library/l-pyint.html

> > > 2) Is this how a python API is typically done? With variables instead
> > > of functions?
> > I also don't know. I thought as there isn't much to do, a variable is
> > easier to use.
>
> Fair enough. I'm a c/c++/c# guy and thus my eyes and brain are
> instantly alerting when I see global variables. :-)
> If possible, I think they should at least be namespaced, so you do
> BinReloc.SelfPath, BinReloc.BinDir or similar when accessing them. Is
> that doable?

They're not global in the C sense; they're per-module. E.g. you'd use them as:

import reloc
reloc.BINDIR

> If anyone else on this list knows python coding standards, please feel
> free to speak up now.

Using __file__ is very common in Python programs. I don't know about
these BINDIR variables, though. People just seem to use it directly.
e.g. in django (first project I tried grepping through):

basedir = os.path.split(module.__file__)[0]


-- 
Dr Thomas Leonard		http://rox.sourceforge.net
GPG: 9242 9807 C985 3C07 44A6  8B9A AE07 8280 59A5 3CC1

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